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Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Seattle, WA

Center Weather Service Unit

ZSE Turbulence and Icing Forecasts

Weather.gov > Seattle, WA > ZSE Turbulence and Icing Forecasts
Icing and Turbulence Graphical Forecast Products
  Icing Forecast     Turbulence Forecast        
Combined GTG High 00hr 03hr 06hr 09hr 12hr 15hr 18hr High Table
Combined GTG Low 00hr 03hr 06hr 09hr 12hr 15hr 18hr Low Table
Clear Air GTG High 00hr 03hr 06hr 09hr 12hr 15hr 18hr
Clear Air GTG Low 00hr 03hr 06hr 09hr 12hr 15hr 18hr
Mountain Wave GTG High 00hr 03hr 06hr 09hr 12hr 15hr 18hr
Mountain Wave GTG Low 00hr 03hr 06hr 09hr 12hr 15hr 18hr
Other AWC Info ⇗ SIGMETs    PIREPs    AWC
Go to the Aviation Weather Center GTG page for more options. Note that turbulence is a highly dynamic phenomenon and in case of rapidly changing conditions the EDR product may not accurately convey a significant hazard.
Maximum Icing Severity 00hr 03hr 06hr 09hr 12hr 15hr 18hr
    with SLD 00hr 03hr 06hr 09hr 12hr 15hr 18hr Table
Maximum Probability 00hr 03hr 06hr 09hr 12hr 15hr 18hr
Lowest Freezing Level 00hr 03hr 06hr 09hr 12hr 15hr 18hr
Other AWC Info ⇗ SIGMETs    PIREPs    AWC
NOTE: CIP/FIP are intended for flight planning purposes and should always be used in combination with icing information from all available sources including AIRMETs, SIGMETs, and PIREPS. CIP and FIP aid flight planning and situational awareness through graphical depiction of current and forecast icing conditions across an area or along a route of flight. See the AWC Help Page for additional information on CIP/FIP use and limitations.
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